matlab解高阶方程,求37085=2000 /(1+j)+2000/(1+j)^2+…+2000/(1+j)^10的
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用lingo解过程(只得到一个解):LINGO程序:model:x^2+y^2=4;2*x^2+x+y^2+y=4;@free(x);@free(y);end得  X=0.9228086;  Y=-1.774381; 用MATLAB求解有四组MATLAB程序:[x,y]=solve('x^2+y^2=4','2*x^2+x+y^2+y=4','x,y');double([xy])ans =   0.9228            -1.7744            -1.6652            -1.1077            -0.6288 + 1.4858i   2.4411 + 0.3827i  -0.6288 - 1.4858i   2.4411 - 0.3827ix7y分别等于上述解的对应值x=0.922873y=-1.7744;x=-1.6652,y=-1.1077;x=-0.6288~ 1.4858i ,y=2.4411 + 0.3827i;x=-0.6288 - 1.4858i,y=2.4411 - 0.3827i明白了吧812祝好.